City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7513
River Falls
County, WI
79 B
#7514 Rock Valley
County, IA
79 B
#7515 Rossville
County, IL
79 B
#7516 Rotterdam
County, NY
79 B
#7517 Round Mountain
County, NV
79 B
#7518 Saranac
County, MI
79 B
#7519 Seabrook
County, NJ
79 B
#7520 Spencer
County, IN
79 B
#7521 Stamford
County, NY
79 B
#7522 Stanhope
County, NJ
79 B
#7523 Stockton
County, MO
79 B
#7524 Sulphur Springs
County, TX
79 B
#7525 Van Buren
County, AR
79 B
#7526 Venus
County, TX
79 B
#7527 Warren
County, IN
79 B
#7528 Wathena
County, KS
79 B
#7529 Watseka
County, IL
79 B
#7530 Webb City
County, MO
79 B
#7531 Webberville
County, MI
79 B
#7532 Wellsville
County, NY
79 B
#7533 West Alexandria
County, OH
79 B
#7534 West Chicago
County, IL
79 B
#7535 White Oak
County, TX
79 B
#7536 Willowbrook
County, IL
79 B
Frequently Asked Questions
How are city water quality rankings calculated?
WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.
Can I compare two US cities directly?
Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.
How often does WaterQ refresh city data?
City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.